From: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
To: jic23@kernel.org, knaack.h@gmx.de, lars@metafoo.de,
pmeerw@pmeerw.net, robh+dt@kernel.org, mark.rutland@arm.com,
khilman@baylibre.com, linux-iio@vger.kernel.org,
devicetree@vger.kernel.org, linux-amlogic@lists.infradead.org,
linux-clk@vger.kernel.org
Cc: carlo@caione.org, catalin.marinas@arm.com, will.deacon@arm.com,
mturquette@baylibre.com, sboyd@codeaurora.org,
narmstrong@baylibre.com, linux-arm-kernel@lists.infradead.org,
Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Subject: [PATCH v2 4/4] ARM64: dts: meson: meson-gx: add the SAR ADC
Date: Sun, 15 Jan 2017 23:42:21 +0100 [thread overview]
Message-ID: <20170115224221.15510-5-martin.blumenstingl@googlemail.com> (raw)
In-Reply-To: <20170115224221.15510-1-martin.blumenstingl@googlemail.com>
Add the SAR ADC to meson-gxbb.dtsi and meson-gxl.dtsi. GXBB provides a
10-bit ADC while GXL (and GXM, which uses the same ADC as GXL) provides
a 12-bit ADC.
Some boards use resistor ladder buttons connected through one of the ADC
channels. On newer devices (GXL and GXM) some boards use pull-ups/downs
to change the resistance (and thus the ADC value) on of the ADC channels
to indicate the board revision.
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
---
arch/arm64/boot/dts/amlogic/meson-gx.dtsi | 8 ++++++++
arch/arm64/boot/dts/amlogic/meson-gxbb.dtsi | 10 ++++++++++
arch/arm64/boot/dts/amlogic/meson-gxl.dtsi | 10 ++++++++++
3 files changed, 28 insertions(+)
diff --git a/arch/arm64/boot/dts/amlogic/meson-gx.dtsi b/arch/arm64/boot/dts/amlogic/meson-gx.dtsi
index cddad8c795ec..041e4f0ed7d7 100644
--- a/arch/arm64/boot/dts/amlogic/meson-gx.dtsi
+++ b/arch/arm64/boot/dts/amlogic/meson-gx.dtsi
@@ -237,6 +237,14 @@
status = "disabled";
};
+ saradc: adc@8680 {
+ compatible = "amlogic,meson-saradc";
+ #io-channel-cells = <1>;
+ status = "disabled";
+ reg = <0x0 0x8680 0x0 0x34>;
+ interrupts = <GIC_SPI 79 IRQ_TYPE_EDGE_RISING>;
+ };
+
pwm_ef: pwm@86c0 {
compatible = "amlogic,meson-gx-pwm", "amlogic,meson-gxbb-pwm";
reg = <0x0 0x086c0 0x0 0x10>;
diff --git a/arch/arm64/boot/dts/amlogic/meson-gxbb.dtsi b/arch/arm64/boot/dts/amlogic/meson-gxbb.dtsi
index 5d686334f692..114d7e1c9fc0 100644
--- a/arch/arm64/boot/dts/amlogic/meson-gxbb.dtsi
+++ b/arch/arm64/boot/dts/amlogic/meson-gxbb.dtsi
@@ -429,6 +429,16 @@
clocks = <&clkc CLKID_I2C>;
};
+&saradc {
+ compatible = "amlogic,meson-gxbb-saradc", "amlogic,meson-saradc";
+ clocks = <&xtal>,
+ <&clkc CLKID_SAR_ADC>,
+ <&clkc CLKID_SANA>,
+ <&clkc CLKID_SAR_ADC_CLK>,
+ <&clkc CLKID_SAR_ADC_SEL>;
+ clock-names = "clkin", "core", "sana", "adc_clk", "adc_sel";
+};
+
&sd_emmc_a {
clocks = <&clkc CLKID_SD_EMMC_A>,
<&xtal>,
diff --git a/arch/arm64/boot/dts/amlogic/meson-gxl.dtsi b/arch/arm64/boot/dts/amlogic/meson-gxl.dtsi
index bb2842f8a08f..6b63296b6c60 100644
--- a/arch/arm64/boot/dts/amlogic/meson-gxl.dtsi
+++ b/arch/arm64/boot/dts/amlogic/meson-gxl.dtsi
@@ -273,6 +273,16 @@
clocks = <&clkc CLKID_I2C>;
};
+&saradc {
+ compatible = "amlogic,meson-gxl-saradc", "amlogic,meson-saradc";
+ clocks = <&xtal>,
+ <&clkc CLKID_SAR_ADC>,
+ <&clkc CLKID_SANA>,
+ <&clkc CLKID_SAR_ADC_CLK>,
+ <&clkc CLKID_SAR_ADC_SEL>;
+ clock-names = "clkin", "core", "sana", "adc_clk", "adc_sel";
+};
+
&sd_emmc_a {
clocks = <&clkc CLKID_SD_EMMC_A>,
<&xtal>,
--
2.11.0
next prev parent reply other threads:[~2017-01-15 22:42 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-01-11 17:43 [PATCH 0/4] Amlogic Meson SAR ADC support Martin Blumenstingl
2017-01-11 17:43 ` [PATCH 3/4] iio: adc: add a driver for the SAR ADC found in Amlogic Meson SoCs Martin Blumenstingl
2017-01-14 14:46 ` Jonathan Cameron
[not found] ` <870f8899-b3a1-153a-5953-88ac23ff6942-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
2017-01-14 17:44 ` Martin Blumenstingl
2017-01-15 13:08 ` Jonathan Cameron
[not found] ` <20170111174334.24343-4-martin.blumenstingl-gM/Ye1E23mwN+BqQ9rBEUg@public.gmane.org>
2017-01-15 12:26 ` Lars-Peter Clausen
2017-01-15 13:09 ` Jonathan Cameron
2017-01-11 17:43 ` [PATCH 4/4] ARM64: dts: meson: meson-gx: add the SAR ADC Martin Blumenstingl
[not found] ` <20170111174334.24343-1-martin.blumenstingl-gM/Ye1E23mwN+BqQ9rBEUg@public.gmane.org>
2017-01-11 17:43 ` [PATCH 1/4] Documentation: dt-bindings: add the Amlogic Meson SAR ADC documentation Martin Blumenstingl
2017-01-11 17:43 ` [PATCH 2/4] clk: gxbb: add the SAR ADC clocks and expose them Martin Blumenstingl
2017-01-15 22:42 ` [PATCH v2 0/4] Amlogic Meson SAR ADC support Martin Blumenstingl
[not found] ` <20170115224221.15510-1-martin.blumenstingl-gM/Ye1E23mwN+BqQ9rBEUg@public.gmane.org>
2017-01-15 22:42 ` [PATCH v2 1/4] Documentation: dt-bindings: add the Amlogic Meson SAR ADC documentation Martin Blumenstingl
2017-01-15 22:42 ` [PATCH v2 3/4] iio: adc: add a driver for the SAR ADC found in Amlogic Meson SoCs Martin Blumenstingl
2017-01-16 10:18 ` [PATCH v2 0/4] Amlogic Meson SAR ADC support Neil Armstrong
2017-01-15 22:42 ` [PATCH v2 2/4] clk: gxbb: add the SAR ADC clocks and expose them Martin Blumenstingl
2017-01-15 22:42 ` Martin Blumenstingl [this message]
2017-01-19 14:58 ` [PATCH v3 0/4] Amlogic Meson SAR ADC support Martin Blumenstingl
2017-01-19 14:58 ` [PATCH v3 1/4] Documentation: dt-bindings: add the Amlogic Meson SAR ADC documentation Martin Blumenstingl
[not found] ` <20170119145822.26239-2-martin.blumenstingl-gM/Ye1E23mwN+BqQ9rBEUg@public.gmane.org>
2017-01-21 12:39 ` Jonathan Cameron
2017-01-21 13:21 ` Andreas Färber
2017-01-21 20:56 ` Rob Herring
2017-01-21 23:10 ` Martin Blumenstingl
2017-01-22 12:30 ` Jonathan Cameron
2017-01-19 14:58 ` [PATCH v3 2/4] clk: gxbb: add the SAR ADC clocks and expose them Martin Blumenstingl
[not found] ` <20170119145822.26239-3-martin.blumenstingl-gM/Ye1E23mwN+BqQ9rBEUg@public.gmane.org>
2017-01-19 19:13 ` Stephen Boyd
2017-01-20 15:46 ` Kevin Hilman
2017-01-19 14:58 ` [PATCH v3 3/4] iio: adc: add a driver for the SAR ADC found in Amlogic Meson SoCs Martin Blumenstingl
2017-01-21 12:52 ` Jonathan Cameron
2017-01-19 14:58 ` [PATCH v3 4/4] ARM64: dts: meson: meson-gx: add the SAR ADC Martin Blumenstingl
2017-01-21 13:28 ` Andreas Färber
[not found] ` <20170119145822.26239-1-martin.blumenstingl-gM/Ye1E23mwN+BqQ9rBEUg@public.gmane.org>
2017-01-21 12:37 ` [PATCH v3 0/4] Amlogic Meson SAR ADC support Jonathan Cameron
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